.banner{
    width: 1080px;
    margin: 0 auto;
}
.banner_wrap{
    width: 1080px;
    height: 607px;
    margin-top: 80px;
    white-space: nowrap;
    overflow: hidden;
    position: relative;
}
.banner_wrap .banner_list{
    width: 5400px;
    height: 607px;
    position: absolute;
    left: 0;
    top: 0;
}
.banner_wrap .banner_list li{
    width: 1080px;
    height: 607px;
    /* display: inline-block; */
    float: left;
}
.banner_wrap .banner_list li img{
    width: 100%;
    height: 100%;
}
/* 移动按钮 */
.banner_wrap .left_btn{
    width: 100px;
    height: 100px;
    float: left;
    position: absolute;
    top: 50%;
    left: 0;
}
.banner_wrap .left_btn img{
    width: 100%;
    height: 100%;
    opacity: 0.2;
    display: none;
    /* 变小手 */
    cursor: pointer;
}
.banner_wrap .left_btn:hover img{
    display: block;
}
.banner_wrap .right_btn{
    width: 100px;
    height: 100px;
    float: right;
    position: absolute;
    top: 50%;
    right: 0;
}
.banner_wrap .right_btn img{
    width: 100%;
    height: 100%;
    opacity: 0.2;
    display: none;
    /* 变小手 */
    cursor: pointer;
}
.banner_wrap .right_btn:hover img{
    display: block;
}